(under subclass 85) Subject matter comprising means to calibrate or correct force per unit area measurement instrument or signal representing such measurement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
47, for flow metering using a pressure sensor.
50+, for fluid parameter (e.g., mass, pressure, viscosity) measurement.
138+, for a pressure measurement system.
SEE OR SEARCH CLASS
73, Measuring and Testing, 157+, for fluid pressure instrument proving or calibrating with signal correction or processing, and subclasses 708 for fluid pressure gauge with pressure or temperature compensation.
364, Electrical Computers and Data Processing Systems,